What should I write on a sublet agreement?

I watch situations such as yours on Peoples court and you should put a resaonable time for a notice, security deposit, all keys to be in you posession upon moving, and all bills to be split evenly and prorated upon moving inbetween the billing cycle. No/ok for pets? No/ok for guests? no/ok for parties? Cover your . It can get qite ugly and costly if you don't cover these issues in writing and before moving in. Good luck